Jepp, Its an idea. For sure. I´d love to use a specific Font where on the other side not all characters are included. Cant find a middot there unfortunately. I cn switch back to a normal font like times or so, but then I have problems with some other characteres which I found after testing around a lot in Fonts. Its a music Font that I need.

Another option is this:
There is a whole note which is at least is a circle and would fit perfect, but the same - its a bit too low position wise compared to textfields which have numbers and letters. Weird, I know. Der Teufel steckt im Detail

I like this concept very much, if theres a way to ask you for this - I promise - last favour.
Please let me know.